20180352906

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{20749}}^1$

素因数の和:20881

約数の個数: 128

約数和(自身を含む): 53544960000

約数和(自身を除く): 33364607094

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 31, 42, 54, 62, 63, 83, 93, 126, 166, 186, 189, 217, 249, 279, 378, 434, 498, 558, 581, 651, 747, 837, 1162, 1302, 1494, 1674, 1743, 1953, 2241, 2573, 3486, 3906, 4482, 5146, 5229, 5859, 7719, 10458, 11718, 15438, 15687, 18011, 20749, 23157, 31374, 36022, 41498, 46314, 54033, 62247, 69471, 108066, 124494, 138942, 145243, 162099, 186741, 290486, 324198, 373482, 435729, 486297, 560223, 643219, 871458, 972594, 1120446, 1286438, 1307187, 1722167, 1929657, 2614374, 3444334, 3859314, 3921561, 4502533, 5166501, 5788971, 7843122, 9005066, 10333002, 11577942, 12055169, 13507599, 15499503, 17366913, 24110338, 27015198, 30999006, 34733826, 36165507, 40522797, 46498509, 53387177, 72331014, 81045594, 92997018, 106774354, 108496521, 121568391, 160161531, 216993042, 243136782, 320323062, 325489563, 373710239, 480484593, 650979126, 747420478, 960969186, 1121130717, 1441453779, 2242261434, 2882907558, 3363392151, 6726784302, 10090176453, 20180352906]

約数ペア:

[(1, 20180352906), (2, 10090176453), (3, 6726784302), (6, 3363392151), (7, 2882907558), (9, 2242261434), (14, 1441453779), (18, 1121130717), (21, 960969186), (27, 747420478), (31, 650979126), (42, 480484593), (54, 373710239), (62, 325489563), (63, 320323062), (83, 243136782), (93, 216993042), (126, 160161531), (166, 121568391), (186, 108496521), (189, 106774354), (217, 92997018), (249, 81045594), (279, 72331014), (378, 53387177), (434, 46498509), (498, 40522797), (558, 36165507), (581, 34733826), (651, 30999006), (747, 27015198), (837, 24110338), (1162, 17366913), (1302, 15499503), (1494, 13507599), (1674, 12055169), (1743, 11577942), (1953, 10333002), (2241, 9005066), (2573, 7843122), (3486, 5788971), (3906, 5166501), (4482, 4502533), (5146, 3921561), (5229, 3859314), (5859, 3444334), (7719, 2614374), (10458, 1929657), (11718, 1722167), (15438, 1307187), (15687, 1286438), (18011, 1120446), (20749, 972594), (23157, 871458), (31374, 643219), (36022, 560223), (41498, 486297), (46314, 435729), (54033, 373482), (62247, 324198), (69471, 290486), (108066, 186741), (124494, 162099), (138942, 145243)]